Do I need to complete any paperwork, care logs, time sheets to prove I am her only care provider?

Just switched from a agency to doing it myself.  Do I have to keep any paperwork or make paper work. .time sheets , ADL logs to prove care. veterans home care supervised our aide and attendance. An agency got all the money, While me a LPN provided 24 hour care. I have now taken over veterans care 24/7. Do I need to complete any paperwork, care logs, time sheets to prove I am indeed her only care provider?